Writing Comedy (The Hardest of all Genre's)

http://sfy.ru/?script=duck_soup

The link above will take you to a website which shows you an early draft of one of the greatest comedies of all time, 'Duck Soup' (1933).  When looking at this screenplay, I found out that it is extremely detailed on almost every single movement that the Marx's brothers make within the film.
From reading this screenplay, I learnt that to write a physical or slapstick comedy, one must go into agonising detail to describe each individual action, no matter how small.
And even though Groucho Marx was, in my opinion, the funniest man that has ever lived, Jack Ruby did right all of his dialogue for this motion picture...

"Humour heightens our sense of survival and preserves our sanity"
                                                                       Charlie Chaplin